The largest producer of mothbean in India

Answer: Option A

Moth bean (Vigna acontifolia) is a drought-resistant legume, commonly grown in arid regions of India. The Moth bean is a creeping annual herbaceous plant that grows to approximately 40 cm high belonging to the family Fabaceae.
Because of its drought resistant qualities, its ability to combat soil erosion, and its high protein content it is identified as a significant food source.
Area and production of moth bean have been highest in Rajasthan. It is 96.75% and 94.49% respectively.